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An extensible library for transforming files

There is a newer version: 2.2.16+16

package com.erigir.wrench.drigo.processor;

import com.erigir.wrench.drigo.DrigoException;
import com.erigir.wrench.drigo.DrigoResults;
import com.googlecode.htmlcompressor.compressor.HtmlCompressor;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.*;
import java.util.zip.GZIPOutputStream;

/**
 * Copyright 2014 Christopher Weiss
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 

 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 **/
public class HtmlCompressionProcessor extends AbstractFileProcessor {
    private static final Logger LOG = LoggerFactory.getLogger(ApplyHtmlBatchingFilterProcessor.class);

    private HtmlCompressor htmlCompressor = new HtmlCompressor();

    public static int totalSaved = 0;

    public boolean innerProcess(File src, File dst, DrigoResults results)
            throws DrigoException, IOException {

        String input = IOUtils.toString(new FileInputStream(src));
        String output = htmlCompressor.compress(input);
        FileOutputStream fos = new FileOutputStream(dst);
        IOUtils.write(output, fos);
        IOUtils.closeQuietly(fos);

        long delta = dst.length() - src.length();
        totalSaved += delta;

        return true;
    }

}